POV-Ray : Newsgroups : povray.beta-test : Gamma tutorial for the 3.7 documentation? : Re: Gamma tutorial for the 3.7 documentation? Server Time
6 Jul 2024 04:07:48 EDT (-0400)
  Re: Gamma tutorial for the 3.7 documentation?  
From: Thomas de Groot
Date: 7 Sep 2009 08:14:30
Message: <4aa4f926$1@news.povray.org>
"Ive" <"ive### [at] lilysoftorg"> schreef in bericht 
news:4aa4f79e@news.povray.org...
> Thomas de Groot wrote:
>> Sven Littkovski's neat little "POV-Ray Color Picker" (2006; version 2.0) 
>> is a good example of such a picker. I use it quite a lot and I recommend 
>> it warmly. Built into POV-Ray would be a nice addition.
>>
>
> Are you aware that this tool (like most others) will not apply the 
> required inverse gamma correction and will result in the usual washed out 
> colors similar to jpeg image maps when used with 3.7 or assumed_gamma 1.0 
> ?
> And to mention it again: wrong gamma correction does not only give wrong 
> brightness intensities, it changes also the hue.
>

Ah... yes...? I had not really/consciously thought of that... This means 
that picking a color from a RGB/HSL color chart in any paint application 
will show this problem?

Thomas


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.